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Chemical Structure| 1740-74-5 Chemical Structure| 1740-74-5

Structure of 1740-74-5

Chemical Structure| 1740-74-5

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Product Details of [ 1740-74-5 ]

CAS No. :1740-74-5
Formula : C9H18O2
M.W : 158.24
SMILES Code : CC(C)=CC(OCC)OCC
MDL No. :MFCD03093968

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Application In Synthesis of [ 1740-74-5 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1740-74-5 ]

[ 1740-74-5 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1740-74-5 ]
  • [ 99-93-4 ]
  • [ 19013-07-1 ]
YieldReaction ConditionsOperation in experiment
71.3% With potassium carbonate; In ethanol; para-xylene; Production of 6-acetyl-2,2-dimethyl-2H-1-benzopyran 83.8 g 4-hydroxy-acetophenone and 0.576 g anhydrous potassium carbonate were placed in 600 ml xylol in a argon atmosphere and heated to 140 C. 162.3 g 1,1-diethoxy-3-methyl-2-butene (77.9% in ethanol) was added in drops over 5 hours to this boiling solution with continuous distillation of the ethanol formed. After the solution had been stirred for 18 hours at 140 C., it was cooled to 20 C. and the organic phase was washed with 200 ml NaOH (5%) and concentrated in a vacuum. The raw product (orange-coloured oil) is distilled under a high vacuum (2.8 mbar/143 C.). The 6-acetyl-2,2-dimethyl-2H-1-benzopyran distillate obtained (90.2 g, 71.3% yield) had a content of 94.9%.
 

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